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Andre45 [30]
3 years ago
9

Student bought n books with 20 dollars and 10-n books with 30 dollars each if p is the total price of the books then which one o

f the following is correct
A p=300-10n
B.P=3n+200
C.P=600-5n
D.P=6n+500 pleaseeee​ I will be best friend forever
Mathematics
1 answer:
marishachu [46]3 years ago
5 0
D.p




1+336&7878977997+677632
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What is a multiple? explain
nikitadnepr [17]

Answer:

A multiple is a number that can be divided by another number a certain number of times without a remainder. A factor is one of two or more numbers that divides a given number without a remainder. ... This number sentence tells us that 20 is a multiple of 5 and is also a multiple of 4.

Step-by-step explanation:

3 0
2 years ago
Find the focus for y=x^2+4x-7
padilas [110]

ANSWER

(2,-10.75)

EXPLANATION

The given function is

y =  {x}^{2}  - 4x - 7

We rewrite this function to obtain,

(y + 11) =  {( x- 2)}^{2}

We now compare this function to

(y  -  k) = 4p {( x- h)}^{2}

We have

4p = 1

This implies that,

p =  \frac{1}{4}

The vertex is (2,-11).

The focus is

(2,-11+ \frac{1}{4} )

(2,- \frac{43}{4} )

(2,-10.75)

7 0
3 years ago
What is the derivative of Y =x√(2x + 1)/e^xsin^3(x).?
blagie [28]
-\dfrac{\mathrm{e}^{-x}\left(\left(2x^2-2x-1\right)\sin\left(x\right)+\left(6x^2+3x\right)\cos\left(x\right)\right)}{\sqrt{2x+1}\sin^4\left(x\right)}.
3 0
2 years ago
Solve for y. 6x-4y=-16
musickatia [10]

y =  \frac{6}{4} x  + 4



Explanation:
1. you subtract 6x to get 4y alone. which will get you -4y=-6x-16
2. then you divide everything by -4 to get y completely alone.
This will get you the answer of y=6/4y+4
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2 years ago
What is the value of p?
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P=pie which could be 8
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3 years ago
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